2nd ground needed?

Old 07-15-01, 10:08 PM
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My outside main service panel is grounded as normal. My neighbor told me in order to play it very safe, to also ground the inside service panel. He suggested driving another grounding rod in the ground and running a ground from the inside panel to it. What do you think about this?

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Old 07-16-01, 06:34 AM
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Is your neighbor an electrician?
Old 07-16-01, 07:23 AM
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Don't pay any attention to this neighbor. Maybe your neighbor on the other side can help.
Old 07-16-01, 07:25 AM
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I would run a grounding conductor directly from the grounding lug or bus of the inside panel to the grounding lug or bus in your main service panel. I would use a bare copper #6 conductor if your service is up to 175 amps, #4 if 200 - 225 amps, or #2 from 250 to 350 amps. Separate grounding electrode systems for your two panels are not permitted. You could create a potential difference that could cause shock or death with separate ground systems. If you were to add a second rod it would need to be minimum 6' away from your existing rod, and both rods must be connected to each other at some point. Hope that helps.


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